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| 型号： | ADS62P44IRGCT |
| 厂商： | Texas Instruments |
| 文件页数： | 65/78页 |
| 文件大小： | 0K |
| 描述： | IC ADC 14BIT DUAL 105MSPS 64VQFN |
| 产品培训模块： | Data Converter Basics |
| 标准包装： | 1 |
| 位数： | 14 |
| 采样率（每秒）： | 105M |
| 数据接口： | 串行，并联 |
| 转换器数目： | 2 |
| 电压电源： | 模拟和数字 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 64-VFQFN 裸露焊盘 |
| 供应商设备封装： | 64-VQFN 裸露焊盘（9x9） |
| 包装： | 标准包装 |
| 输入数目和类型： | 2 个差分，单极 |
| 其它名称： | 296-23137-6 |
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SNR + 10Log
10 Ps
P
N
SINAD + 10Log
10
Ps
P
N ) PD
ENOB +
SINAD * 1.76
6.02
SLAS561C
– JULY 2007 – REVISED FEBRUARY 2012
DEFINITION OF SPECIFICATIONS
Analog Bandwidth
– The analog input frequency at which the power of the fundamental is reduced by 3 dB with
respect to the low frequency value.
Aperture Delay
– The delay in time between the rising edge of the input sampling clock and the actual time at
which the sampling occurs. This delay will be different across channels. The maximum variation is specified as
aperture delay variation (channel-channel).
Aperture Uncertainty (Jitter)
– The sample-to-sample variation in aperture delay.
Clock Pulse Width/Duty Cycle
– The duty cycle of a clock signal is the ratio of the time the clock signal remains
at a logic high (clock pulse width) to the period of the clock signal. Duty cycle is typically expressed as a
percentage. A perfect differential sine-wave clock results in a 50% duty cycle.
Maximum Conversion Rate
– The maximum sampling rate at which certified operation is given. All parametric
testing is performed at this sampling rate unless otherwise noted.
Minimum Conversion Rate
– The minimum sampling rate at which the ADC functions.
Differential Nonlinearity (DNL)
– An ideal ADC exhibits code transitions at analog input values spaced exactly
1 LSB apart. The DNL is the deviation of any single step from this ideal value, measured in units of LSBs.
Integral Nonlinearity (INL)
– The INL is the deviation of the ADC's transfer function from a best fit line
determined by a least squares curve fit of that transfer function, measured in units of LSBs.
Gain Error
– Gain error is the deviation of the ADC's actual input full-scale range from its ideal value. The gain
error is given as a percentage of the ideal input full-scale range. Gain error has two components: error due to
reference inaccuracy and error due to the channel. Both these errors are specified independently as EGREF and
EGCHAN.
To a first order approximation, the total gain error will be ETOTAL ~ EGREF + EGCHAN.
For example, if ETOTAL = ±0.5%, the full-scale input varies from (1-0.5/100)xFSideal to (1+0.5/100)xFSideal.
Offset Error
– The offset error is the difference, given in number of LSBs, between the ADC's actual average
idle channel output code and the ideal average idle channel output code. This quantity is often mapped into mV.
Temperature Drift
– The temperature drift coefficient (with respect to gain error and offset error) specifies the
change per degree Celsius of the parameter from TMIN to TMAX. It is calculated by dividing the maximum deviation
of the parameter across the TMIN to TMAX range by the difference TMAX–TMIN.
Signal-to-Noise Ratio
– SNR is the ratio of the power of the fundamental (PS) to the noise floor power (PN),
excluding the power at DC and the first nine harmonics.
(6)
SNR is either given in units of dBc (dB to carrier) when the absolute power of the fundamental is used as the
reference, or dBFS (dB to full scale) when the power of the fundamental is extrapolated to the converter
’s
full-scale range.
Signal-to-Noise and Distortion (SINAD)
– SINAD is the ratio of the power of the fundamental (PS) to the power
of all the other spectral components including noise (PN) and distortion (PD), but excluding dc.
(7)
SINAD is either given in units of dBc (dB to carrier) when the absolute power of the fundamental is used as the
reference, or dBFS (dB to full scale) when the power of the fundamental is extrapolated to the converter's
full-scale range.
Effective Number of Bits (ENOB)
– The ENOB is a measure of a converter’s performance as compared to the
theoretical limit based on quantization noise.
(8)
68
Copyright
2007–2012, Texas Instruments Incorporated
Product Folder Link(s): ADS62P45, ADS62P44 ADS62P43, ADS62P42
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| ADS62P44IRGCTG4 | 功能描述:模数转换器 - ADC DUAL 14B 105MSPS Para ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| ADS62P44RGC | 制造商:TI 制造商全称:Texas Instruments 功能描述:Dual Channel 14-Bit, 125/105/80/65 MSPS ADC with Parallel CMOS/DDR LVDS outputs |
| ADS62P45 | 制造商:TI 制造商全称:Texas Instruments 功能描述:Dual Channel 14-Bit, 125/105/80/65 MSPS ADC with Parallel CMOS/DDR LVDS outputs |
| ADS62P45_08 | 制造商:TI 制造商全称:Texas Instruments 功能描述:DUAL CHANNEL, 14-BITS, 125/105/80/65 MSPS ADC WITH DDR LVDS/CMOS OUTPUTS |
| ADS62P45EVM | 功能描述:数据转换 IC 开发工具 ADS62P25 Eval Mod RoHS:否 制造商:Texas Instruments 产品:Demonstration Kits 类型:ADC 工具用于评估:ADS130E08 接口类型:SPI 工作电源电压:- 6 V to + 6 V |
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